require "stringio"

class TrueClass
  def to_s
    "YES"
  end
end

class FalseClass
  def to_s
    "NO"
  end
end

def calc(input)
  n, m = input.gets.split.map(&:to_i)
  n.times.map { input.gets }.any?(/LOVE/)
end

input = StringIO.new(<<~EOS)
2 6
FJSYSK
RLOVER
EOS

# input = StringIO.new(<<~EOS)
# 10 20
# TEOWMZGTZKRECDSBYSUY
# IIXIGGXYZZOUGETSFZNH
# JELNHDQHYKFIUEQBNQZO
# PQJXUCRABFHMJUCTASAY
# FIGZOZABPAQGQZEMDVOG
# AXSMSWFSPFSUPAVEZWFQ
# YXXQYDCBYTHBQCNKYSEP
# ZWLPXHVYFAPDYOVYRZAR
# SJSLLHVMZCDBYPQXWLYB
# NPGNDBMWAOPVXIGLPDXR
# EOS
# puts calc(input)
puts calc($stdin)